So just now I played a game as AP Yi, because I was thinking whatever he just seems like a troll badass and i'll dunk everyone (Kinda sarcastically to myself) and then I started playing against a Zyra mid and it was SO RIDICULOUS!! He is fracking good!! I was thinking "Okay i'll get like 3 kills in the game and do meh in teamfights" But NO! I was fracking 2 hitting people and just being untargetable and amazing! I'm really surprised actually that he isn't played by competitive people, because he has mobility, harass, AMAZING last hitting, an ability that lets him be invincible temporarily, one that heals him and screws over the enemy team, and it's just genuinely amazing. But he would probably be focused and CC'd down really, but still he is GLORIOUS (also his roam is so nice :D )